This inventor holds 2 USPTO granted patents and 1 published patent application. Top assignees: Yonsei University, Hyundai Motor Company, Kia Corporation. Active years: 2026.
Company Filing History:
2 out of 1,470 
1 out of 20,176 
1 out of 5,660 
Years Active: 2026
Title: Du Yeol Ryu: Innovator in Fuel Cell and Lithography Technologies
Introduction
Du Yeol Ryu is a prominent inventor based in Seoul, South Korea. He has made significant contributions to the fields of fuel cell technology and lithography. With a total of 2 patents, Ryu's work showcases his innovative approach to solving complex engineering challenges.
Latest Patents
Ryu's latest patents include groundbreaking inventions that enhance the efficiency and functionality of fuel cells and lithography processes. One of his notable patents is for an ionomer for fuel cells capable of self-assembly. This ionomer features a copolymer that includes hydrophilic moieties at both ends, which consist of a styrene unit and a proton conductive functional group. The hydrophobic moiety interposed between these hydrophilic moieties includes various ethylene-based units, butylene-based units, or isoprene-based units.
Another significant patent is for a block copolymer designed for lithography. This copolymer is capable of self-assembling and self-healing. It comprises a first block that is a repeating unit of polymerized siloxane and a second block that is a repeating unit of polymerized alkyl azobenzene acrylate. The alkyl chain can be linear or branched, containing 1 to 10 carbon atoms. The structure of this block copolymer allows for a cylindrical phase, which is crucial for advanced lithography applications.
Career Highlights
Throughout his career, Du Yeol Ryu has worked with esteemed institutions such as Yonsei University and Hyundai Motor Company. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in technology.
Collaborations
Ryu has collaborated with notable colleagues, including Hui Il Jeon and Seungbae Jeon. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and expertise.
Conclusion
Du Yeol Ryu's contributions to fuel cell technology and lithography exemplify his innovative spirit and dedication to advancing engineering solutions. His patents reflect a commitment to developing technologies that can significantly impact various industries.